Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Classic Space Classic Space Sets Official Sets Small Builds

6872: Xenon X-Craft

October 19, 2019October 19, 2019 Master Builder 5420 Views

Year Released: 1985
Bricklink

Back A
Back B
Back C
Back D

← 607 – Back C
6872 – Back A →

You May Also Like

6847 – Back D

September 14, 2025September 15, 2025 Master Builder

2151: Robo Raider

January 14, 2021September 3, 2025 Master Builder

6155 – Back A

March 20, 2023March 22, 2023 Master Builder

1496 – Back B

October 20, 2019October 20, 2019 Master Builder

6970 – Back A

January 20, 2021January 20, 2021 Master Builder

6512: Landscape Loader

May 10, 2022May 10, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Bjarne Tveskov Blacktron Blacktron Sets Large Builds Official Sets Space

6954: Renegade

September 7, 2020October 16, 2024 Master Builder

Year Released: 1987Designer: Bjarne TveskovBricklinkInstructions *Alternate Build Connection: 1988 Classic Space and Blacktron with Zack Commercial

Classic Space Classic Space Sets Official Sets Small Builds Space

6883: Terrestrial Rover

October 22, 2019October 21, 2024 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

6926: Mobile Recovery Vehicle

October 12, 2021October 12, 2021 Master Builder

Classic Town Hospital Large Builds Official Sets Town Town Sets

1896: Trauma Team

April 4, 2022April 4, 2022 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets Space

6783: Sonar Transmitting Cruiser

May 8, 2022August 15, 2023 Master Builder

Hospital LEGOLAND Medium Builds Official Sets

780: Road Construction Set

February 14, 2024February 14, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6809: XT-5 and Droid

April 4, 2020April 4, 2020 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6645: Street Sweeper

November 20, 2020November 20, 2020 Master Builder

Castle Castle Sets Dark Forest Medium Builds Official Sets

6046: Hemlock Stronghold

November 18, 2021November 18, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1526: Unknown (Space Radar Buggy)

August 20, 2025August 29, 2025 Master Builder

Classic Town Fire Official Sets Small Builds Town Town Sets

6525: Blaze Commander

May 4, 2020November 19, 2020 Master Builder

Boat Fire Medium Builds Official Sets

775: Fire Fighter Ship

July 22, 2024July 22, 2024 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Small Builds

6875: Hovercraft

September 16, 2019October 16, 2024 Master Builder

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

6211: Imperial Star Destroyer

February 6, 2024February 7, 2024 Master Builder

Medium Builds Official Sets Paradisa Town Town Sets

6405: Sunset Stables

September 15, 2022September 15, 2022 Master Builder

Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets Royal Knights

6090: Royal Knight’s Castle

July 13, 2021July 29, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

Adventurers
Aquazone
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
Town
Universal Building Set
Western
More Sets
Misc

Useful Links

Submit Instructions!
New Instructions
New Official Sets
New Alternate Builds
Minifigs
Very Small Builds (<35 pcs)
Small Builds (<100 pcs)
Medium Builds (<200 pcs)
Large Builds (<400 pcs)
Extra Large Builds (>400 pcs)
How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.